Revert "replace squizlabs/php_codesniffer with phpcsstandards/php_codesniffer"#1646

kukulich merged 2 commits intoslevomat:masterslevomat/coding-standard:masterfrom

jrfnl:feature/composer-fix-phpcs-refjrfnl/slevomat-coding-standard:feature/composer-fix-phpcs-refCopy head branch name to clipboard